Earth
This layer of the Earth is located between the crust and the outer core and makes up the largest volume of Earth's interior.
What is the mantle?
This is the specific mixture of gases that surrounds the Earth and is held in place by gravity.
What is the atmosphere?
This is the official name for Earth's only natural satellite.
What is The Moon?
This specific condition is what makes the habitable zone "just right" for life as we know it.
What is the presence of liquid water?
This is the state of matter water takes when it is found in the polar ice caps or as snowpack.
What is a solid (or ice)?
This is the lowest layer of the atmosphere, where all of Earth's weather occurs.
What is the troposphere?
The layer of the atmosphere where the International Space Station often orbits and where temperatures can get extremely hot.
What is the thermosphere?
This moon of Jupiter is famous for its active volcanoes and is the most volcanically active body in the solar system.
What is Io?
If a planet orbits too close to its star, inside the inner edge of this zone, its water will likely do this process.
What is evaporate (or boil off)?
On Earth, this is where approximately 97% of all the planet's water is found.
Where are the oceans?
This is the most abundant gas in Earth's atmosphere, making up about 78% of the air we breathe.
What is nitrogen?
"This atmospheric layer is home to the ozone layer and is where commercial airplanes typically fly because it is very stable."
What is the stratosphere?
This moon of Saturn is known for its thick atmosphere, which is mostly made of nitrogen and features liquid methane lakes on its surface.
What is Titan?
If a planet orbits too far from its star, outside the outer edge of this zone, its water will likely do this process.
What is freeze (or turn into ice)?
Although none has been confirmed on the surface, scientists believe that this red planet once had flowing rivers and may have subsurface liquid lakes today.
What is mars?
The name of the process where water vapor in the air cools down and turns into liquid water, forming clouds.
What is condensation?
This atmospheric process involves water changing from a liquid state on the Earth's surface into a gaseous state (water vapor) in the air.
What is evaporation?
This icy moon of Jupiter shows strong evidence of a subsurface ocean of liquid water and is a prime target in the search for extraterrestrial life.
What is Europa?
This moon of Saturn has geysers near its south pole that spray water vapor and ice particles into space, suggesting a large subsurface ocean that could potentially support life.
What is Enceladus?
More than twice the amount of liquid water on Earth is thought to exist in a massive subsurface ocean on this moon of Jupiter, a prime target for future NASA missions.
What is Europa?
This vital, protective layer within the stratosphere absorbs most of the Sun's harmful ultraviolet (UV) radiation.
What is the ozone layer?
This phenomenon, essential for life on Earth, is caused by greenhouse gases trapping heat in the atmosphere.
What is the greenhouse effect?
These two small, irregularly shaped moons of Mars are named after the Greek gods of fear and panic.
What are Phobos and Deimos?
This is the specific type of star that Earth orbits within its habitable zone.
This is the specific type of star that Earth orbits within its habitable zone.
This moon of Jupiter is not only the largest moon in the solar system, but is believed to harbor a subsurface ocean that contains more water than all of Earth's oceans combined.
What is Ganymede?